<style>
    .stuff[scope] {
        border: 1px solid white;
        padding: 0.5em;
    }

    .stuff[scope] button {
        background-color: red;
        color: black;
        font-weight: bold;
        padding:0.2em 0.6em;
    }
</style>

<dom>
    <div class="stuff" scope>
        <label>123</label>
        <button name="x">x</button>
    </div>
</dom>